((Her name is Yuuki. She's your girlfriend, who you've had a good relation with. What she doesn't know, but you do, for whatever reason, is that she's a bomb. If the fuse sticking out of her chest is lit, she will detonate.))

You walk into your apartment to find Yuuki sitting at the table, dangerously close to a candle. She smiles at you.

"Oh, hey! I was just sitting here, waiting for you."